Preparation of Hβ/OMC and Adsorption Desulfurization

doi:10.3969/j.issn.1672-6952.2019.06.003

Journal of Liaoning Petrochemical University ›› 2019, Vol. 39 ›› Issue (6): 15-20.DOI: 10.3969/j.issn.1672-6952.2019.06.003

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Preparation of Hβ/OMC and Adsorption Desulfurization

Qi Yuhuan¹，Li Jian¹，Liu Yingying¹，Yang Lina¹，Yao Li²，Shi Zhewen²

(1.College of Chemistry,Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun Liaoning 113001, China； 2.Olefin Plant of Yangzi Petrochemical Co., Ltd., SINOPEC, Nanjing Jiangsu 210044, China）

Received:2019-04-01 Online:2019-12-25 Published:2019-12-24

Hβ/OMC的制备及吸附脱硫研究

齐玉欢¹，李剑¹，刘莹莹¹，杨丽娜¹，姚莉²，石喆文²

（1.辽宁石油化工大学化学化工与环境学部，辽宁抚顺 113001； 2.中国石化扬子石油化工有限责任公司烯烃厂，江苏南京 210044）

通讯作者: 杨丽娜（1976⁃），女，博士，教授，从事新型多孔催化材料研究；E⁃mail:yanglnzg@163.com
作者简介:齐玉欢（1993-），女，硕士研究生，从事清洁燃料方面研究；E-mail:qiyuhuan2019@163.com
基金资助:
辽宁省高等学校杰出青年学者成长计划项目（LJQ2015062）；辽宁省科学技术厅项目（20170540585）；辽宁省教育厅项目（L2015296、L2016018）；抚顺市科技计划项目（FSKJHT201376）

Abstract

Abstract: The composite material Hβ/OMC containing the mesoporous carbon (OMC) and Hβ zeolite was synthesized. This composite was characterized with XRD, BET, FITR, SEM and TEM. The adsorption desulfurization performance of Hβ/OMC was investigated with benzothiophene (BT) as the probe molecule. The adsorption thermodynamics and kinetics of the BT on Hβ/OMC were studied. The characterization results showed that Hβ/OMC has the micro⁃mesoporous hierarchical pore structure, its specific surface area, pore volume and pore diameter are all higher than those of OMC. The saturated sulfur capacity of BT on Hβ/OMC is higher than OMC. Compared with Freundlich adsorption isotherm model, the adsorption of BT on Hβ/OMC is more consistent with Langmuir model. The adsorption of BT on Hβ/OMC is a process of spontaneous, exothermic and degree of confusion reduction, which is described better by pseudo⁃two⁃kinetic equations than pseudo⁃one⁃kinetic equations.

Key words: Recombination, Molecular sieve, Mesoporous carbon, Benzothiophene, Adsorption desulfurization

摘要： 将介孔碳(OMC)与Hβ分子筛复合，制备了复合型吸附脱硫剂Hβ/OMC。采用XRD、BET、FTIR、SEM和TEM等手段对其进行表征，以苯并噻吩（BT）为探针分子，考察了Hβ/OMC的吸附脱硫性能，研究了Hβ/OMC分子筛吸附BT的热力学和动力学规律。结果表明，Hβ/OMC具有微⁃介孔结构，其比表面积、孔容及孔径均高于OMC；Hβ/OMC对BT的饱和吸附硫容量高于OMC；与Freundlich吸附等温模型相比，BT在Hβ/OMC上的吸附更符合Langmuir模型；Hβ/OMC对BT的吸附是自发、放热、混乱程度降低的过程，采用拟二级动力学方程比拟一级动力学方程对吸附过程描述得更好。

关键词: 复合, 分子筛, 介孔碳, 苯并噻吩, 吸附脱硫

Qi Yuhuan，Li Jian，Liu Yingying，Yang Lina，Yao Li，Shi Zhewen. Preparation of Hβ/OMC and Adsorption Desulfurization[J]. Journal of Liaoning Petrochemical University, 2019, 39(6): 15-20.

齐玉欢，李剑，刘莹莹，杨丽娜，姚莉，石喆文. Hβ/OMC的制备及吸附脱硫研究[J]. 辽宁石油化工大学学报, 2019, 39(6): 15-20.

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Preparation of Hβ/OMC and Adsorption Desulfurization

Hβ/OMC的制备及吸附脱硫研究

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